121254125200122 has 64 divisors (see below), whose sum is σ = 243543476736000. Its totient is φ = 40245932548800.

The previous prime is 121254125200111. The next prime is 121254125200127. The reversal of 121254125200122 is 221002521452121.

It is a happy number.

121254125200122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×121254125200122² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121254125200122.

It is not an unprimeable number, because it can be changed into a prime (121254125200127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4313390847 + ... + 4313418957.

It is an arithmetic number, because the mean of its divisors is an integer number (3805366824000).

Almost surely, 2^{121254125200122} is an apocalyptic number.

121254125200122 is an abundant number, since it is smaller than the sum of its proper divisors (122289351535878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121254125200122 is a wasteful number, since it uses less digits than its factorization.

121254125200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31819.

The product of its (nonzero) digits is 6400, while the sum is 30.

Adding to 121254125200122 its reverse (221002521452121), we get a palindrome (342256646652243).

The spelling of 121254125200122 in words is "one hundred twenty-one trillion, two hundred fifty-four billion, one hundred twenty-five million, two hundred thousand, one hundred twenty-two".